The Neighborhood Slow Zone Program invites neighbors to apply for traffic calming in an entire zone of residential streets. The City works hand-in-hand with communities to design and install traffic calming throughout the Slow Zone. Within Slow Zones, the City lowers speed limits to 20MPH and installs measures to slow traffic, including speed cushions and more. The Tioga Slow Zone is Philadelphia’s is located on residential blocks from 17th to 22nd streets, between Ontario and Erie.